Nitrogen is an odorless, taste less, non visible gas that pretty much freezes anything that gets in its way. Nitrogen comprises 78.09% by the volume of the atmosphere. Nitrogen is lighter then liquid when it is and lighter then air when it is gaseous. Nitrogens boiling point is -195.8º and it is freezing point is -209.9º. Nitrogens density is 1.153kg so it is going to look the same when it is mixed with water. Nitrogen contains 7 electrons, 7 neutrons, and 7 protons in it. Nitrogens atomic weight is 14.006 and its atomic number is 7.